Improvement in refrigerators



UNITED STATES PATENT OFFICE.

JOSEPH K. MILLS, DENVER, COLORADO TERRITORY.

IMPROVEMENT IN REFRIGERATORS.

Specification forming part of Letters Patent No. 157,019, dated November17, 1874; application led March 26, 1874.

To all whom 'it may concern:

Be it known that I, J. K. MILLS, of Denver, in the county of Arapahoeand Territory of Colorado, haveinvented certain Improvements inRefrigerators, of which the following is a specification:

My invention consists in the combination, with a chest or refrigerator,of an ice-tank of peculiar construction, provided with air-tubessurrounded by receptacles for the ice, whereby a current of cold air iskept in circulation through the tank and the chest or apartment in whichit is placed.

In the accompanying drawing, Figure 1 is a longitudinal vert-icalsection of a refrigerator with one of my improved ice-tanks at each end.Fig. 2 is a top view of the same. Fig. 3 is a central vertical sectionthrough one of the tanks.

The chest or apartment A may be of any suitable form and dimensions, andmay contain two tanks, one at each end. The tank B is divided into threeor more chambers, b, in each of which is a pipe, c, connected at theupper end with a transverse pipe communieating with the chest orrefrigerator outside of the tank. The chambers b may be of cylindricalor other suitable form, extending downward to within a short distance ofthe bottom of the chest A, and are provided with waste pipes forcarrying oft' the drippings from the ice, which waste-pipes communicatewith a pan, f. The lower ends of the pipes c pass through the bottoms ofthe chambers b, so as to communicate with the chest or refrigeratorbelow said chambers, and their upper ends communicate with each other bymeans of a pipe, g, running longitudinally of the tank. Transverse pipesh pass from one side of the tank to the other, communicating with thechest A outside of the tank, and also with the longitudinal pipe g. Theice is placed in the upper part ofthe tank, resting upon the pipes g h.As the air circulates through saidpipes it is cooled by the ice, and, asit has free communication with the chest outside of the tank, thetendency is to reduce the temperature of all the air in the chest. Thedrippings from the tank ow into the pan j', from whence they are carriedott' by a Waste'pipe.

What I claim as new, and desire to secure by Letters Patent, is-

In a refrigerator having a tank divided into compartments, thecombination of the pipe g communicating with the vertical pipes c, withthe pipes h communicating with the chest A, and the pipes g, allarranged to operate sub stantially as described, for the objectspecilied. "f

JOSEPH K. MILLS.

Witnesses:

T. A. GREATOREX, WM. D. TODD.

